How do I setup a reverse hostname?

August 31, 2014 6.5k views
matt752514
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matt752514

When I send an email (using sendmail) from the command line to my email account I get this in the response:
450 4.7.1 Client host rejected: cannot find your reverse hostname,

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3 Answers
vps August 31, 2014

The reverse hostname is the droplet name. So if you name your droplet something.mydomain.com you get a PTR record of something.mydomain.com

If you already created your droplet simply rename it in the control panel under settings.

your sendmail config should also use this same name.

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  • matt752514 August 31, 2014

    Does it make a difference that I'm not using Digital Ocean's name servers? Currently I'm using Hover's name servers.

  • vps August 31, 2014

    No, doesn't matter reverse ip dns is handled by DO. You can leave your nameservers set at Hover.

  • matt752514 August 31, 2014

    Where in sendmail config do you mean?

    I can email successfully to my Gmail address, but my Hover address rejects it.

    Also if I type my Droplet's IP address into this tool it says that no PTR record exists.
    http://mxtoolbox.com/ReverseLookup.aspx

  • vps August 31, 2014

    Can't really advise you on sendmail. I haven't touched a sendmail setup since 2003.

    It may take a few hours for the name change to propagate out.

    I would just hold off until reverse dns resloves.

  • matt752514 September 1, 2014

    It's working now (just waited). Thanks.

dorivalac September 21, 2014

i have the same problem ! i renamed my PTR as serevr.domainame.com , and the reverse dont exists , is in digitalocean any tutorial to setup reverse domain /

thanks

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dorivalac September 21, 2014

i have the same problema,
is in faq digitalocean any tutorial to setup reverse domain ?

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